Memory freq problem! Plz help!!

M

Mcky

New Member
Specs:
Intel Core2Duo 2.4Ghz @ 3.0Ghz 1333MhzFsb
Twin-X Corsair 1GB DDR2 667 @ 533
Asus P5B-E Plus
CoolerMaster Extreme 600W PSU


I can successfully OC my CPU to 3.0Ghz but the DRAM Freq decreaase to 533Mhz. When I set DRAM freq back to 667Mhz, system hangs! Why? The RAM and MOBO supports 667Mhz. I never mess with the rest of the mem timings. Do I need to increase Mem/CPU voltage?? Help??
 
I increase the CPU FSB speed and my MOBO auto-adjusts my RAM freq to 533Mhz. When i set RAM freq back to 667 mhz (which my RAM module supports), system hangs at POST. I did not mess with any RAM timings. Only the two mentioned. Any more settinsg i need to adjust like voltages etc?? Help!! :(
 
When ocing your cpu you back off on the fsb and vice versa lower the cpu's multiplier when ocing the memory. With the system hanging you now need to clear the cmos in order to restore the factory defaults. When ocing you do it one step at a time by first backing cpu and fsb down to raise one thing one step at a time to the highest where you are still seeing stability.

You can try raising the cpu voltage one step to see if the system still hangs. Otherwise you would want to start over by the gradual step by step increase of clock speed and voltages. Raising the fsb usually sees a faster system in the long run however.
 
Mcky said:
I increase the CPU FSB speed and my MOBO auto-adjusts my RAM freq to 533Mhz. When i set RAM freq back to 667 mhz (which my RAM module supports), system hangs at POST. I did not mess with any RAM timings. Only the two mentioned. Any more settinsg i need to adjust like voltages etc?? Help!! :(
Click to expand...

that's cause when you set your RAM frequency back to 667mhz from 533mhz, you are OCing by 134mhz X (your cpu multiplier) which is a VERY large 1 step OC. Try slowly setting you ram frequency up from 533mhz and see what happens.
 
The main problem there was trying to oc in large increments. That's where things can get a little buggy at first until you are familiar with the techniques along with the hardwares you run.
 
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